What is doping in semiconductor material?
[3 marks]How the depletion layer is formed in unbiased diode?
[4 marks]Draw half wave rectifier circuit. Draw waveform for voltage across diode, diode current with Rand RC load.
[7 marks]Compare Zener Diode and PN junction Diode.
[3 marks]Write a short note on Varactor diode.
[4 marks]Explain capacitive filter with Ripple Factor.
[7 marks]Explain transistor construction with size and doping level of each region.
[3 marks]Differentiate FET and BJT.
[4 marks]For the fixed-bias circuit shown, determine
[7 marks]Collector current, IC (ii) Collector resistance, RC (iii) Base resistance, RB (iv) VCE. Assume β = 80 and VBE = 0.7 V.
[ marks]How transistor act as a switch? What are limitations?
[3 marks]Draw V-Icharacteristics of Zener diode.
[4 marks]What value should R2 be in figure below to set up a diode current of 0.25 mA? Consider V =0.7v D1
[7 marks]Describe the purpose of cascading CE and CC amplifiers.
[3 marks]Explain the T Model of a transistor.
[4 marks]Explain the voltage divider bias circuit in detail.
[7 marks]What is the use of Heat Sinks in power amplifier?
[3 marks]Explain the difference of class Aand class Boperation of an amplifier.
[4 marks]Draw and explain class Bpush-pull amplifier.
[7 marks]List the advantages of Negative feedback.
[3 marks]Describe JFET applications as analog switch.
[4 marks]Explain Darlington pair connections of two transistors.
[7 marks]Summarize all four negative feedback amplifier with input output resistance and voltage gain.
[3 marks]Compare FET with BJT.
[4 marks]Explain construction, operation and characteristic of P-channel Enhancement type MOSFET in detail.
[7 marks]